High School

What may be used to check the stem on a pilot-type valve for stretch?

A. Micrometer
B. Thread pitch gauge
C. Dial indicator
D. Feeler gauge

Answer :

Final answer:

A dial indicator is the correct tool for checking a pilot-type valve stem for stretch, due to its ability to measure small movements with high precision.

Explanation:

To check the stem on a pilot-type valve for stretch, the appropriate tool would be a dial indicator. A dial indicator can measure small distances or movements with precision, which is essential when verifying the integrity of valve stems for any signs of stretching or elongation.

A micrometer could be used for dimensional measurements, a thread pitch gauge for measuring the pitch or lead of a screw thread, and a feeler gauge for measuring gap widths, but none of these tools are specifically designed for detecting stretch in a valve stem like a dial indicator.